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| Number | Title | Issue Date |
| 8139768 | Encrypting content in a tuner device and analyzing content protection policy A tuning device uses a counter mode encryption cipher to encrypt counters associated with media content in order to protect the media content when it is sent to requesting device or controller. The encrypted counters are decrypted in order to consume the media conte... | 03/20/2012 |
| 8094819 | Method and apparatus for high agility cryptographic key manager A method and apparatus for improved algorithm and key agility for a cryptosystem, comprising a CAM-type key manager. The key manager uses two memories, an index RAM and a key RAM, to virtualize each algorithm or key using pointers from the index RAM to the key RAM, ... | 01/10/2012 |
| 8081756 | Implementation of media-protection policies A technique wherein a first electronic device, such as a server, provides to a second electronic device, such as a client device, a first portion of a digital-content stream. The first electronic device receives an identifier of a protection policy to be applied to ... | 12/20/2011 |
| 8019080 | Method and apparatus for providing content service There is provided a method and apparatus for providing a content service. A method of providing a content service includes generating a plurality of pieces of decryption information according to a continuous period of using a broadcasting service with respect to pre... | 09/13/2011 |
| 7876899 | Recoverable digital content degradation: method and apparatus The present disclosure relates generally to processing media signals such as audio and video. One claim recites a method comprising: obtaining a media signal, wherein the media signal comprises a plurality of samples; identifying characteristics of the media signal,... | 01/25/2011 |
| 7831045 | Security module revocation method used for securing broadcasted messages The aim of the present invention is to propose a method to prevent the abusive use of conditional access data, in particular by means of clones of security modules whose security has been compromised. This aim is reached by a revocation method of security mod... | 11/09/2010 |
| 7804959 | Digital cable television broadcasting receiver A global platform card manager of the IC card chip includes a conditional access software decoding part. A decoding key specific to each conditional access software vendor and a key identification number corresponding to the decoding key are preset in the conditiona... | 09/28/2010 |
| 7602913 | Retrieval and transfer of encrypted hard drive content from DVR set-top box utilizing second DVR set-top box A system and method for retrieval and transfer of encrypted content from a first set-top box utilizing a second set-top box. When content is recorded to the storage device of the first set-top box, the content is encrypted with a content instance key. This content i... | 10/13/2009 |
| 7602914 | Utilization of encrypted hard drive content by one DVR set-top box when recorded by another A system and method for encrypting and recording content to removable storage media for use by multiple set-tops. When content is recorded to the storage media, the content is encrypted with a content instance key. This content instance key is encrypted with the pub... | 10/13/2009 |
| 7508941 | Methods and apparatus for use in surveillance systems A control signal is provided to a video data acquisition system that generates video data. In response to receiving the control signal, the video data acquisition system modifies at least a portion of the video data to produce an output signal. Authenticity of the o... | 03/24/2009 |
| 7486792 | Terrestrial broadcast copy protection system for digital television According to the invention, a method for protecting digital television from unauthorized digital receivers within a population of digital receivers is disclosed. Each digital receiver in the population has a unique identifier. In one step, provisioning information i... | 02/03/2009 |
| 7437447 | Method and system for authenticating a requestor without providing a key A method for authenticating a requesting entity in a communications environment. In an exemplary embodiment, the method includes determining a client identification of a client node associated with the requesting entity, and determining whether the requesting entity... | 10/14/2008 |
| 7424622 | Microprocessor with improved task management and table management mechanism A tamper resistant microprocessor has a task state table for assigning a task identifier to a task that can take a plurality of states, and storing a state of the task in correspondence to the task identifier; a task register for storing the task identifier of a cur... | 09/09/2008 |
| 7400725 | Information recording medium for recording a scrambled part of content information, and method and apparatus for reproducing information recorded therein An information recording medium, such as an optical disk or the like, is provided for recording at least copyrighted content information and cipher key information. A part of the content information is scrambled and recorded in the information recording medium, and ... | 07/15/2008 |
| 7392389 | Electronic transmission device, and signal transmission method An electronic signal transmission device comprises a first communication section to be connected to a first electronic device of a signal transmitting side; a second communication section to be connected to a second electronic device of a signal receiving side; an a... | 06/24/2008 |
| 7383230 | System and method for the efficient exchange and pricing of services and intangible works An exchange system for intangible goods comprises a first user system, a second user system, a registry system, a clearinghouse system and a hash module coupled for communication with each other. The first and second user systems includes a content module for acting... | 06/03/2008 |
| 7380137 | Content guard system for copy protection of recordable media A system and method for enabling broadcast programs to be copied once only by consumer recorders includes writing a unique media identification on each blank disk to which content is to copied in a read-only area of the disk before it is initially recorded. Also, a ... | 05/27/2008 |
| 7380135 | Diligent control of preview of stored contents A method of transmitting contents, which are to be received at a reception side where a portion of the contents is previewed while the contents are not accessible for playing other than for a preview purpose, includes the steps of encrypting the contents by a first ... | 05/27/2008 |
| 7373656 | Automatic configuration for portable devices The present invention relates to a portable device configured to interact with any number of host computing devices. In operation, the portable device will initially appear to a host computing device as a known device type. The host computing device will be configur... | 05/13/2008 |
| 7373517 | System and method for encrypting and decrypting files A system and method distribute the task of decryption between a server and a client. To encrypt data, the client generates an encryption/decryption key. Namely, a user interface obtains a password, generally from a user. A hint generator generates a hint. A key gene... | 05/13/2008 |
| 7370016 | Music distribution systems Music is blanket transmitted (for example, via satellite downlink transmission) to each customer's user station where selected music files are recorded. Customers preselect from a list of available music in advance using an interactive screen selector, and pay only ... | 05/06/2008 |
| 7370268 | Systems and methods for managing and presenting multimedia and content rich data on a removable memory apparatus The various embodiments disclosed are generally directed towards systems and methods for managing and displaying content rich data, such as multimedia, residing on a removable memory apparatus inserted into a handheld device. In one aspect of the invention, a method... | 05/06/2008 |
| 7363504 | Method and system for keystroke scan recognition biometrics on a smartcard The present invention discloses a system and methods for biometric security using keystroke scan biometrics in a smartcard-reader system. The biometric security system also includes a keystroke scan sensor that detects biometric samples and a device for verifying bi... | 04/22/2008 |
| 7353211 | Method for encrypting data and a telecommunications terminal and access authorization card A method of encrypting data, a telecommunications terminal and an access authorization card are described, which permit utilization of services of one or more service providers independently of a network operator or manufacturer of the telecommunications terminal. E... | 04/01/2008 |
| 7353209 | Releasing decrypted digital content to an authenticated path Digital content is released to a rendering application for forwarding by such rendering application to an ultimate destination by way of a path therebetween. The path is defined by at least one module, and the digital content is initially in an encrypted form. An au... | 04/01/2008 |
| 7350038 | Disk system and medium with contents play-back restriction mechanism A disk system has contents play-back restriction mechanism. A contents storage section, which contents received from a regular server are stored in. A capacitor charged with power supplied from the server. A volatile memory backed up by the capacitor and stores data... | 03/25/2008 |
| 7346931 | Accepting a set of data in a computer unit A method for transferring at least one data record from an external data source into a processor unit, e.g., and a suitably designed processor unit are described. In such a method for transcribing at least one data record from the external data source to a processor... | 03/18/2008 |
| 7343491 | Information processing apparatus and method In order to limit use of content, when a source receives a request for transmitting content from a sink, the source performs an authentication process. When the authentication is successful, the source transmits to the sink key information necessary for decrypting t... | 03/11/2008 |
| 7343013 | Composite session-based encryption of video on demand content A Video On Demand (VOD) method consistent with certain embodiments involves processing content by selecting first portions of the content for encryption under a selective encryption system and selecting second portions of the content to remain unencrypted. The first... | 03/11/2008 |
| 7340462 | User-configurable terminal for displaying, retrieving, inputting and processing data A terminal for displaying, retrieving, inputting and processing data for the user comprises a central unit, a storage unit connected to the processor of the central unit, a storage unit, elements for communicating with a connection network with access/service provid... | 03/04/2008 |
| 7336785 | System and method for copy protecting transmitted information To afford copy protection for information, e.g. elementary streams, from a service provider while in transit between a point of deployment (POD) module and a set-top box, the information is accompanied by control information pairs. The pairs are respectively associa... | 02/26/2008 |
| 7337146 | Emergency information management system A wide-area emergency information management system includes a broadcasting entity (10) and delivers content to authorized receiver clients (20), such as PC's, laptops, wireless devices, etc. The specific content (26), which can include voice, t... | 02/26/2008 |
| 7336788 | Electronic book secure communication with home subsystem The invention, an electronic book selection and delivery system, is a new way to distribute books and other textual information to bookstores, libraries and consumers. The primary components of the system are a subsystem for placing text in a video signal format and... | 02/26/2008 |
| 7336789 | System for providing encrypted data, system for decrypting encrypted data and method for providing a communication interface in such a decrypting system A system and method for providing encrypted data for use in a content player are described. The system comprises an encryption device for encrypting data using an encryption algorithm, and a protection device for providing security device data and for providing info... | 02/26/2008 |
| 7327843 | Data reproducing device, hard disk, and data storing disk A hard disk A has is constructed to include: a disk 10 in which copy protection information is written in advance in a surface shape such as slits or corrugations in a pre-recording region 13 over a substrate 11 other than a data storage region ... | 02/05/2008 |
| 7324648 | Method and apparatus for secure key delivery for decrypting bulk digital content files at an unsecure site Rather than downloading each content document on demand from the publisher location to the user site, at the publisher location, each content document is encrypted and then multiple encrypted documents are assembled into a distribution archive that is itself encrypt... | 01/29/2008 |
| 7324167 | High-quality twisted-pair transmission line system for high-resolution video A system comprising a first filter having an input and an output adapted to compensate for the characteristics of a first length of twisted-pair wire is disclosed. A first bypass path has an input and an output for bypassing the first filter. A second filter has an ... | 01/29/2008 |
| 7324974 | Digital data file encryption apparatus and method A digital data file encryption apparatus and method, where a digital data server identifies the user and supplies an encrypted digital data file to the user in accordance with the identified result. A personal computer decrypts the encrypted digital data file suppli... | 01/29/2008 |
| 7319752 | Information recording device, information playback device, information recording method, information playback method, and information recording medium and program providing medium used therewith An information recording/playback device stores beforehand, on a recording medium, secret information in which a writing/reading method thereof cannot be analyzed and which can be read only by a special reading method. The secret information is applied to a key for ... | 01/15/2008 |
| 7317798 | Communication processing system, communication processing method, server and computer program A communication processing system which allows a secure communication with a mobile terminal via a network. The communication processing system includes a server which provides a common key used to encrypt and decrypt data transmitted between communication terminals... | 01/08/2008 |
